Originally Posted by toolapcfan

Very nice, It's nice to see other people take the time to do this stuff and do it right. I shake my head when I hear people are hacking into the coil wiring to get a signal and drilling holes in their firewalls. When I put a tach in my '93 XE I used the blue/white wire also, which worked fine, but the actual tach wire used for the OEM tach is the blue/black wire at ECU terminal #2. It's also found in a harness behind the HVAC controls. I also tapped into the dimmer wires at the dimmer switch, it's closer to the gauge cluster and easier to remove and fish wires to than the hazard switch. It seems as though most tachs don't have a seperate power feed or ground for the backlight though, so using the dimmer probably won't work on a lot of aftermarket tachs. In the XE I used a cheap Equus (sp?) 2" tach I bought from JC Whitney for about $20, because to me, nothing would have been cheasier than to have a noticeable tach in an XE. And I used double sided tape to hold it onto the steering column on the topside. That didn't hold up too well in the summer heat but I wasn't going to drill holes or do anything permanent to mount the thing.