Page 1 of 2 12 LastLast
Results 1 to 10 of 16

Thread: Budget Jeep Install

  1. #1
    Low Bitrate
    Join Date
    Aug 2005
    Posts
    96

    Budget Jeep Install

    Hey guys, first post.

    So anyways, I am soon going to "inherit' my dad's 1996 Jeep Grand Cherokee and would like to carputerize it. I have an extensive background in computers, so i'm not worried about the computer part, but i am a noob when it comes to car electronics, so i have a few questions.

    Ok so my first project will be to replace all the speakers in the Jeep, because the original ones are cardboard replicas of speakers. (at least that's what they sound like )

    Is every correctly-sized speaker out there going to work with my Jeep? I'm kind of confused about the stock setup i have. Is the amp built into the casette/radio player? If i replace it with a new cd player, will I also need to get a new amp? What are the advantages of having an amp?


    Next, power questions-

    What i was thinking is, why the hell do people buy opus power supplies for like $150 when all you need is one of those cigarette jack-to-120V outlet things? Then i thought, well that would mean that the computer would turn off whenever the car did. BUT THEN i thought, why not hook up the two wires in the 12v jack directly to the battery? Isn't that essentialyl the same as an opus?


    Next, wiring questions.

    Is there enough room in the paneling to accomodate for a few new vga, usb, ps2 wires? Also, are there any length limitations or will the quality just decrease as the length increases?


    Thanks alot for all your help.

  2. #2
    Low Bitrate
    Join Date
    Aug 2005
    Posts
    96
    anyone?

  3. #3
    Low Bitrate agentloveless's Avatar
    Join Date
    Aug 2005
    Location
    So Cal
    Posts
    79
    Ok first your question of the speakers. Pretty much you want to find the nicest set that will physically fit. The wattage of the speaker is important as well because it lets you know how much power you can apply to them.

    Unless you have a premium sound package you amp is built into the headunit. If you replace it you will prolly get a headunit with amplified output. When looking at them you should see a number like 50W x 4. This means it applies 50 watts to each speaker. The advantage you an amp is that you have more power and cleaner signal. Unless you are looking to disturb an entire neiborhood the head unit will prolly be good enough. I suggest you get one that has Auxillary input so you have hook your computer up that way.

    Now to the power. The reason people use opus is that it is more efficient. Going from 12V dc to 120 AC then back to 12V dc is not efficient and there are more losses. If you hook it up straight to the battery, you could possible drain your battery dead if you left it hooked up while your car is off. The opus has protection against that because when it starts to sense a low voltage it shuts itself off.

    You should have no problem fitting cables. Keep them as short as you can. Any more questions???

  4. #4
    Low Bitrate
    Join Date
    Aug 2005
    Posts
    96
    thanks alot for your reply.

    as far as power goes, can i have a second battery dedicated to my computer that is recharged from the actual car battery?

  5. #5
    Low Bitrate agentloveless's Avatar
    Join Date
    Aug 2005
    Location
    So Cal
    Posts
    79
    Ok I think I am following your logic....

    You wish to have a second battery so that way if you computer drains it till its dead, your car still starts correct?

    Can this be done? Yes, but its not as simple as hooking up one battery straight to the other. If you hooked one up to the other, the carputer would drain both batteries till they were dead. What you want to do is electrically isolate one battery from the other. However, you need it to charge when the car is on, so you don't want it to be isolated while the car is on.

    To do this you will need a relay, and it needs to be capable of carrying high current. Something like this
    http://cgi.ebay.com/STINGER-SR80-HIG...QQcmdZViewItem


    I will post a circuit diagram.

  6. #6
    Newbie thegingerkid's Avatar
    Join Date
    Jun 2004
    Location
    Ireland
    Posts
    35
    if you need to know what fits your car try entering your vehicle into crutchfield
    the have a what fits my car section..

    http://www.crutchfieldadvisor.com/S-...akers_fit.html

  7. #7
    Variable Bitrate
    Join Date
    Jun 2005
    Location
    Michigan
    Posts
    311
    You're really belittling the OPUS here. It also includes startup/shutdown timers, which will cost you $50-$100 more to add to an inverter. If you *ever* have a question that starts with "well why the hell dont people just ... ?" then that means you need to search more. MP3Car people have thought of just about everything, and have tried pretty much every possible way to hook up their carputers.

  8. #8
    Newbie BlueGerbil's Avatar
    Join Date
    Aug 2005
    Location
    Germany
    Posts
    1
    If you own a Grand Cherokee please look under your rear seat. Perhaps you´ll find an Infinity amp down there.

    May I also suggest to register at JeepsUnlimited, you´ll learn a lots of things about your Jeep and there´s a audio/video-section as well.
    Regards,
    Jan

    It´s a JEEP thing...

    My toy

  9. #9
    Low Bitrate
    Join Date
    Aug 2005
    Posts
    96
    hmm.. no amp... :-)

    stupid cheapo parents :-)

  10. #10
    Low Bitrate agentloveless's Avatar
    Join Date
    Aug 2005
    Location
    So Cal
    Posts
    79
    Here is that diagram:

Page 1 of 2 12 LastLast

Similar Threads

  1. Subaru Impreza 2.5RS '05 Wagon Install... on a budget
    By Pseudo Nim in forum Show off your project
    Replies: 35
    Last Post: 06-24-2008, 03:38 PM
  2. Jeep Grand Cherokee Install
    By TaylorMade in forum Show off your project
    Replies: 21
    Last Post: 12-12-2006, 04:22 AM
  3. 94 Jeep Grand Cherokee Install
    By jamiewhittingha in forum Show off your project
    Replies: 10
    Last Post: 08-02-2006, 02:02 PM
  4. jeep grand cherokee install
    By jackjohnson24 in forum Newbie
    Replies: 1
    Last Post: 01-12-2005, 02:53 PM
  5. Jeep LCD install kit?
    By Tommyboy in forum LCD/Display
    Replies: 1
    Last Post: 08-07-2002, 07:47 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •