Join Date: Jul 2002
Location: Boerne, TX, USA
I think you just might be between a rock and a hard place with your radio problems. I had a similar experience as I needed to replace my radio and had 4 replacement radios lined up to try, but with no guarantee as to which one or if any of them would work. Long story short, I dug into the stingray and tried 3 separate units before finding one that worked correctly. I even had it all buttoned back up once, and was test riding before I found out that the radio had a heat related problem (I think) in one of the channels as it cut out after just a few minutes of use. I had tested the radio's functionality at every step of reassembly too. As it turned out the radio had to play awhile until the channel stopped functioning. Soooo, back into the stingray again.
I think your only option is to try to find someone with a working bike and try the swap like Dick said. Don't know of a way to test the radio off the bike, and I asked several knowledgeable folks, both here on the board and elsewhere too (dealers & technicians). I'm pretty sure that most dealers would do the same thing. With most radio problems they simply start swapping parts until it works again. I realize that's probably no comfort, but sadly, it's true.
As an aside, and we've written about this before, but I would again say to be careful to make sure that you know the software version of the RCU and radio. I'd hate to see you get everything working again, and introduce the battery drain problem into the mix by getting a software mismatch. RCU Ver 3 only works with Radio Ver 7. RCU Ver 2 works with any Radio software version.
As an afterthought, you might be able to remove your radio and try it in an R1200CL(?) if you know someone who has one. The radio in the CL is in the right saddlebag and is the easiest radio to get to on any of the BMWs. You can swap CL radios in a matter of minutes. I had a cd stuck in one of the radios that I scrounged up, and I hooked it up to the CL to get the cd out. Worked like a champ. That might give you some insight as to the culprit. It sure would be a lot easier than opening up 2 LT stingrays. Just a thought. Good luck!