After reading tons of boost gauge install threads, I still have a couple questions. When it says 'tap' into such and such wire; do I just cut existing wire and twist in new gauge wire and tape them with electrical tape? Or do I use those plastic cap things to splice the wires together? I feel pretty comfortable with the rest of the install, but I've never messed with the electrical in my car before.
I also haven't decided where to wire it in at. I've read that the radio, clock, cigarette lighter are all good places. Do the 04's have a stock plug for a boost gauge in the wiring somewhere? I think I read that the 02' and 03' do. I have the prosport electrical boost gauge by the way.
Lastly, the rubber grommett...do I drill a hole in the rubber piece? Otherwise how do I get the grommett back in there with the wires coming out?