I used a different version... but I used a T-Tap off of my factory stereo harness.... B1 on my 03 H2....

 

A cheap alternative is to use an FM transmitter for ipod. I hd one for my company car, stuck in my Hummer for a long trip to Moab and I was impressed. Sure it isn't digital but it wasn't bad either, especially considering is was about $25.00

 

Muddydawg75 - my manual says B1 is "Battery Positive Voltage". I haven't hit it with a meter. Do you know if this voltage is constant (never shuts off) or is switched? It sounds like it is going to be constant.

Hummer Driver - while the FM transmitter is cheaper (and easier), you'll really appreciate the sound quality. I have a Pioneer unit in my Explorer, and you definitely will love the sound and the ability to control the iPod through the head unit.

 

B1 is constant... you are correct.

 

Did you guys get any alternator whine from the USA Spec adapter?

 

I have an AXXESS adapter... but whine is usually a poor ground....

 

Does your AXXESS adapter have a separate ground along with power? I have the DICE adapter. It has only has power (besides the OEM head unit connectors). So, I am curious if all these other similar adapters have a ground. I could throw a filter at it. I have sent an email to DICE tech support on this and a display issue, but they aren't very speedy in their responses. The web site says 1-2 business days. The last question took almost 2 weeks. Buyer Beware

 

My AXXESS plugs into the factory harness with a pigtail for the AXXESS Digital interface. My XM plugs into the AXXESS, along with the Ipod. It couldn't be easier.

 

Yeah, sounds it. I believe this is the unit JPCustoms sells. I had called them last year, but I think it was only available for the H2. Mine wasn't difficult to install just add it into the 24-pin harness and attach power. Probably will need to open the dash back up and add a filter or swap my power source to get rid of the alternator whine. It would have been nice to have a ground. Curious if the USA Spec model has a ground.