Hi - I have a GMC 1/2 Gas and was fortunate to find the battery connects to the alternator through a stud compatment that is located right underneath the alternator. I take it you probably have dual batteries on your Durmax and the diesel is not set up this way.
In any case, most of the GM vehicles I have seen (including my MH Workhorse Chassis) have at least one fused stud that is there to accomdate accessories. The one on the my MH has two seperate fused 40 Amp studs. Thats where I plan to hook up my radio and I am sure it will do fine. Might actually be listed on the fuse cover ?
Hope this helps -- 73
Mark, W3ZI
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Mark Johnson - W3ZI
2007 National Sea Breeze LX / 8367
2007 Chevrolet Malibu Toad
TS2000 / Yaesu 857D and a Tarheel Antenna
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