richcosta Posted August 31, 2007 Report Share Posted August 31, 2007 i recently added xm and traffic to my Z1. seems to work fine on my unlocked unit. the paperwork that came with the xm/traffic suggests to upgrade the programing to a later version. will this effect my unlock? I used the jumper wire and the headlight on/off only. i did not need the circuit. Quote Link to post Share on other sites
whtcrxghst Posted August 31, 2007 Report Share Posted August 31, 2007 Yes. You will have to switch to the 2-wire method bypass if you update the software Quote Link to post Share on other sites
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