I am not sure where the ebrake wire is...I had best buy install this...any idea where the wire is, color etc. and do I just ground it to any metal? Thanks...
Yes, you can ground the parking brake wire however it WILL interfere with the GPS only if you have not calibrated yet.
If your GPS is already calibrated and operating correctly, then its safe ground the parking brake wire. If you ever need to re-calibrate, then you will need to unground it, re-calibrate, then ground it again
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