I know this subject has been beaten to death but I'm still not clear on a few things. How hard are these thing really to install? If I get an 04 WRX wiring harness for it, Do I still need to do a lot of cutting and splicing or is it just like a plug and play? Do I need an 04 wiring harness or will an 03 's work with my car? Is there any difference in install between the manual and 4EAT? I have been hearing about problems with the factory alarm and these things, am I going to have problems?
Finally, which one is the best? This is the one I have been looking at, the Blitz tt-dc 2 turbo timer. Also does this one have a voltage display like the FATT? I just think that a volt meter would be very useful.
Thanks again everyone.