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Discussion Starter #1
Wondering if the radio inputs could be used or re-wired for something else, like like the GPS input, IPOD or maybe XM satellite? Seems like a waste and since the radio is wired to my Auto Comm, all sound systems would have the same central control.
 

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On my Garmin 2730 with GXM-30, I use a cassette adaptor to listen to the XM. Sounds better than tuning to a radio station IMO (you have the option of not hard-wiring the XM at all, if you don't want to). I drilled a small hole on the left side of the oddments box, and wired her in. My '01 doesn't have an "auxilliary in" jack like I think the newer LTs have.

I could have gone straight into my Autcom, but wanted to be able to use the LT volume controls, rather than those on the Garmin.

BTW, the cassette adaptor was $24.95 at Best Buy, I think. It has the standard 3.5 mm audio jack on it, and a "cassette tape" on the other end. I had to buy an extension audio cable (male at both ends - they didn't have a cable that was male/female for some reason), and a coupler (two female ends) to extend the cable from my BMR shelf to the oddments box.

An additional side note: I found that using the Dolby Noise reduction on the LT cassette deck makes it sound better too. When you first use the cassette adaptor, you may hear some hiss; the Dolby eliminates that.

I have also removed the CD changer to give my pillion extra cargo space, since CDs are old school.
 

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Discussion Starter #3
Thanks Brian, I was thinking of running the audio from the 2820 XM 3.5 jack directly into the BMW radio if that is possible. I haven't opened it up yet to look, but I think there is a way besides the cassette route.

Presently the mono audio from the GPS is going directly from the GPS pig tail 2.5 connection directly to my AutoComm. It was pretty easy since I used the same audio connection as my previous SP III. I don't have the XM antenna yet (still looking) so I've time to play with it/
 

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Dan, if you discover an easy way to wire into the radio, let me know (like a hidden aux. jack buried in back, etc.)!
 

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yeah, cassette adaptor works well.
I did not drill any holes, the wire of my cassette adaptor is quite small and the lid of the oddments box can be closed over it with not problem.
I think the cassette adapator cost me $10-15.
Not the neatest installation, but works well I've been running it that way for many years.
Sat radio, radar dectector, FRS (when I use it) and wiring connections are in my tankbag.

When parking the bike where piflering is a concern, removing the tank bag removes all the electronics.
 

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Discussion Starter #6
I still have one more input available on my Auto Comm so opening up the bike's radio is not required. The Auto Comm worked great with my StreetPilot III and seems to be working as well with my new 2820. The 2820 sure is nice compared to the old SPIII.

XM installation: The Auto Comm web site is loaded with what appears to be helpfully install info and diagrams for the 2820 and show that the 2.5 mm output on the side of the GPS can go directly into the Auto Comm and receive stereo XM, GPS and Bluetooth cell (receive not talk) calls. Input into the Auto Comm is 3.5 and the 2820 came with just such a cable. Once I get the XM antenna and subscription set up I'll give this a try. Seems to be the least invasive.

My cell phone is not Bluetooth, so that will have to wait until I loose it or it gets left out in the rain. I don't see it on the horizon.
 
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