The M1 looks functionally equivalent to the Opus and a similar size, except the user manual seemed to imply that you can make it do a proper power cut (then GhostScript crashed, it doesn't like that PDF very much) if this is the case then it's an ideal solution, assuming the dimensions are similar to the Opus, thank you for pointing it out to me as I didn't know it existed. What are the dimensions of this board?
Originally Posted by Scouse Monkey
I'll probably just pop down to a local car audio store for that to save on the shipping. Your project sounds interesting but as the headunit is only a stop-gap solution it's not a route I'll be going down.. OTOH if you know how to enable the RCAs for less than 44 quid then I'm very interested especially if it just involves joining two pins together.
As for the enabling the RCAs on your sony, where are oyu gettign that autoleads box from? I have seen it for about £44. I am building a unilink box that enables the aux ports and also allows you to control your PC from the HU and will hopefully send the track data to the HU screen. Jsut starting to build it now as i have located my PIC programmer and got an XR-C9100R off ebay.
I'm from Wavertree, but I'm currently spending more time at my GFs, recovering from the crash, back to work on Monday
Where in Liverpool are you from?
Nice car btw- saving for an Impreza.
I did originally want an Impreza but then I remembered what it was like when I had a sporty Escort, scallys in Novas constantly wanting to have a go, police assuming I was the same and doing non-random spot checks, and then it eventually got nicked. The Legacy is nice and anonymous and amazingly fast, the second turbo really makes a difference to low end torque and having a tiptronic box is nice for good upshifts, and no-one gives you a second glance. Perfect for Liverpool.
I'm lazy.. if the PSU does it for me I'll get that PSU
EDIT you can build a simple circuit to kill the power after shutdown using a relay powered by the ign AND the PSU itself. Easy peasy.
Oh and to respont to Maxxell's suggestion, yes that would work perfectly but it only needs me to forget to do it once, most likely when I'm doing a week-long on-site installation and flatten my battery when I really want to go home, much better to automate things that can be automated rather than rely on stupid users to get it right (can you guess I work in IT?
Edit: I've just read your description of the relay-based power killer, something like this:
Edit2: Included diodes described below
That way if the PSU is on, it keeps itself on, and as soon as the PC shuts down, it signals the PSU to switch off the harddrives and stuff which inturn isolates it from the battery and the only way you and unisolate it is to turn the accessory circuit on. Bloody genius!
+----+ / +----+
+-| | E-nnn---+--+ +----- /
| +----+ | +----|<----o o--
+--12V for HD->|-+ Accessory Circuit
o o - Switch
->|- - Diode
E - Earth
nnn - The coil bit of a relay