FAQ: How to Wire an OPUS PSU

**Bugbyte** · 02-16-2006, 08:45 PM

See post 34. Consider what happens if your 12 gauge wire short out near the Opus. You will have a direct short to ground and no fuse. The wire will begin to heat until something gives. That can start a fire.

The fuse is designed to blow if the wire shorts, not the Opus.

**Silentbob343** · 02-17-2006, 05:47 AM

Originally Posted by Bugbyte

See post 34. Consider what happens if your 12 gauge wire short out near the Opus. You will have a direct short to ground and no fuse. The wire will begin to heat until something gives. That can start a fire.

The fuse is designed to blow if the wire shorts, not the Opus.

Ahh you are correct I never considered the possiblity of a short like that. thank you for the thought.

**01black_ac** · 03-26-2006, 03:43 PM

For the Opus 120, what type of fuse should I use on the line coming off the battery? Should it be 15A, or should it be lower or higher?

Also, for the 12V line itself, running from the battery to the 12V yellow line on the Opus, should that wire be around 10G or 12G? The yellow wire on the Opus harness is 16G, so is it safe to solder a 10G or 12G wire onto a 16G wire?

Additionally, what would the blue/white REMOTE wire on the Opus harness be used for? Is that strictly for something like a stereo amp, or could it be used in some way with my in-dash touchscreen? My in-dash touchscreen also has a REMOTE wire, and I'm not sure if I should just seal both of those wires off, or if there's some other reason I would want to use them...

'01

**Eubey** · 03-26-2006, 05:53 PM

whats the best way to connect the wires directly to the battery? or do you connect to a wire comming off of the battery?

**01black_ac** · 03-29-2006, 08:28 PM

Originally Posted by Eubey

whats the best way to connect the wires directly to the battery? or do you connect to a wire comming off of the battery?

For my system, I got a pack of gold plated copper terminals. They have a gold loop that gets connected to the bolt that you tighten on the battery terminal.

This is what they look like, though I didn't get mine from this site: http://www.doityourself.com/store/0078535.htm

'01

**therob** · 03-30-2006, 10:29 AM

What would be the dangers/problems with connecting the Opus power line to like a block distributer with 30A fuses instead of the 15-20 that is suggested?

**tundra2000** · 03-30-2006, 08:29 PM

is the ground distribution block really necessary? can i just find two different places on my chassis to ground it or will that cause problems? (can anyone suggest a place to get ahold of a ground distrib. block?)

also, can those IGN lines be put together like in the picture and then connected to the ignition?

**Eubey** · 03-30-2006, 10:27 PM

everything i have read on troubleshooting bad sound or anything has always said ground at the same place...

**tundra2000** · 03-31-2006, 12:08 AM

thanks - im looking around, can i just use another power distro block just backwards?

example: just buy two of these or does the power one have to be fused, and the ground one not fused...?