Recent content by izzbo

Thanks. I'm 99% sure the wires aren't touching b/c I soldered and shrink wrapped every connection. In terms of the 12V mute, does it need to see a constant 12V or see 12V once to mute it and 12V once to unmute it? I guess I'm what I'm getting at is can I use a multimeter to see if 12V is going...

My head unit (Pioneer AVH-P4300DVD) is randomly muting itself while it is on. I have the mute wire hooked up to the mute wire of the GMOS-01 harness. The reason for the GMOS-01 harness is b/c the car came with built in bluetooth and OnStar so I want to retain those features along with the...

Well I added the video bypass switch and it is working fine. I used the same wiring harness but just plugged it into the new GMOS-01 unit. Thanks everyone for your help with this! This is a great forum and really helpful. I am still having trouble with the mute signal though. This was an issue...

I hooked up my existing wiring to the new GMOS-01 box and it works as it should. So somehow with in 3 days and disconnecting it once the GMOS-01 went to crap. But here is that catch. I bought one of those video parking break bypass relay's pre-made off of ebay. I did this b/c the pre-made one...

No I bought a new one on amazon for $370. It's the GMOS that is having the issues b/c there is definitely power going through the ACC wire at all the time. My new GMOS-01 arrived yesterday so I'm trying the new one out today. I'll update the thread so everyone knows what I find out.

accuab, thanks for helping me with all my questions. I really appreciate it. What's the best way to test the car's wiring harness wires? Do I have to remove a piece of the insulation or can I stick the probe right into the end of the wiring harness? The reason I ask is b/c I tried that (sticking...

I do have an extra Bussman add a fuse lying around that I could use for this but it really irrates me that I can't use the wire on the GMOS-01. The GMOS-01 has all the wires you need to hook up everything right there and it did work at one point. Has anyone every used a GMOS or similar unit and...

Thanks everyone who replied. accub, I think my issue is opposite what you are thinking. The problem is that the head unit is always on and doesn't turn off when I turn off the car. As I said in my previous posts it was working as it should initially then stopped working when I soldered the...

Thanks everyone for your suggestions. I'll try the multimeter w/the red wire and post my results. If anyone else has some suggestions about why this is happening please chime in also. The more info the better for me.

I have a new Pioneer AVH-P4300DVD that I'm installing in my Hummer H3. I bought a Metra GMOS-01 so I didn't have to splice into the factory wire harness. I first hooked up the GMOS-01 to the Pioneer's radio harness and just wrapped the wires together and taped them w/electrical tape to ensure...