I've installed a 3 pod gauge cluster which gives me voltage, water temp and rmp...Problem is I can't locate a wire with signal for RMP's and am unsure about tapping into the coolant temp switch for signal. Any ideas where I can find speedometer signal, "wire location and color" ? The A 1 from the factory radio does not seem to emit a signal or perhaps I didn't make a good connection when I tried it. I have this setup in my 99 TransAm and I sort of like it so I wanted to do the same in my slk. Overkill, yes but I like the look!
I like the pillar pods, but wiring them in is too much of a pain for me
On mine, i've got a bluetooth OBDII reader that sends info to my phone (android) and I have an app called TrackAddict that displays the info (as well as using the phone's sensors for g-force etc). TrackAddict will also record video and overlay the info onto the video.
So, what I was thinking, is stick with the pods idea, but instead have them pick up the signal from the bluetooth reader and display the info in an LED display, so from the outside they'd look the same as your pods, but no need to wire them in, other than for power.
You can buy off the shelf Heads Up Displays that connect via bluetooth to OBDII pretty cheap (I've seen some for Ł30, so about $50ish) but I do like the pods. I'll ask my electronics friend nicely if he fancies building something,