Quick question how would you hook up a Transmition temp gauge, and a water temp gauge...for the water they sell adapters that go on the hose didnt know if that worked... if it did wondering what size.... and the other gauge i have is a volt gauge but i think i can handle that lol... Let me know thanks Sean

does your car not have a water temp gauge on the stock cluster?

yeah it does i dont know what i was thinking when i bout it..... but its all good

lol i was watching this thread because i just got my gauges and im needing to know how to hook up oil pressure, and a/f narrow band but i figured that one out, the other gauge is boost

not sure how you would hook up your voltage gauge

I dont really think the volt gauge will be hard..It the trans temp that i dont know....

I've never hooked up any of those gauges before but I am going to assume that:

the water temp will probably tap into a coolant line with a T piece and a sensor
trans temp will probably have to have a temp sensor tapped into the transmission pan (I could be wrong)
volt gauge I would assume is just going to be wired to each battery terminal (like if you were testing with a voltmeter)

Like I said I may be wrong, so don't go quoting me on that. But its the easiest way I can think of to get those gauges working.

not sure about the trans BUT for the volt jus use your cig lighter port, cut the end of the connector and use the red and yellow wires to tap into it and of course just ground the black wire that will give you a read out of your volt meter thats how i have mine wired in, granted i have my cig lighter shaved if your not willing to give up your port then just do what was stated above ^

ok since Im known as the gauge king around my parts, I will share with you how I hooked up my 9 external gauges!

oil pressure - glowshift oil sandwich
boost/vac - through vacuum manifold
narrowband - tapped stock o2 sensor
egt - tapped turbo manifold by cylinder #1
trans temp - added "t" inline with external trans cooler
fuel pressure - off fpr
volts - cluster power wire
oil temp - glowshift oil sandwich
water temp - custom radiator with 1/8 npt bung

My Turbo Cavalier, just a little video! - Photos & Media Forum
You can see all my gauges there!