Dahler tune install question
I bought a Dahler tune a few months ago and now that my run in service is done I am ready to install it. Seems straight foward. Read the instructions that came with it and watched a youtube video on install. My question is my wiring harness does not have a dedicated red power and black ground connection. the directions dont call for any direct battery connections but one youtube video showed a power and ground cable connection. the harness or box has no provisions for a power and ground cable. what am I missing here? any input would be helpful. thanks. I assume the harness is the same for the M2, M3, and M4
Jay
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