<center><img src="http://pictureposter.audiworld.com/25140/af_meter_installed.jpg"></center><p>Many thanks to UrS4, Moribund, Mr. D, and anyone else who walked these steps before me and posted their journey.

Thankfully, I did not have to annodize the Meter to make it black, because it's only a plastic housing--not aluminum. Good ol' spray paint for plastics did the trick to make it match my black interior.

I must have had a color-blind factory worker wire my car, I had three pale green, one green, and one green/black stripe in the fourth ECM harness connector, which made a little more trouble for me.

Mounting the meter was easy: just a custom aluminum bracket, made of thin sheet aluminum, cut to the width of the meter and about 3.5x as long, bent into the shape of a triangle with one corner open, painted black, with foam strips on both sides of the open end to slide into the slot molded into the backside top of the trim piece above the steering column. No glue or drilling to mount, foam both absorbs vibration and keeps the meter securely mounted.

Drilled only one hole into the chassis of the car for ground, because Audi had a hole nearby that proved impossible to get either a screw driver or wrench to the back side.

Terminal 15 (behind the kick panel) for power requires a 6mm nut--I used one with nylon lock.

Since meter uses super thin-gauge wires (likely 30+ gauge), I used thinnest locally available wire--24 gauge, which is bigger but close enough for jazz.

Lots of time due to very tedious jobs: measuring, trimming, soldering, cutting, painting, preping, and a long learning curve for the uninitiated, but I really like seeing my Air/Fuel Ratio with digital accuracy but analog-style display.

And, you're welcome! The install looks great! :-)

Glad it worked out well. I was considering the same convenient spot for mounting the display, but because I wanted the option of monitoring both O2 sensors, I didn't want the meter too far from the switches, and there's just no room for the switches in front of the gauge cluster.

Let me know when you figure out how to average the reading. My meter seems to spend most time at 0 V, followed by small bursts of up to 0.5 to 0.7 V. Only at WOT do I ever get over 0.8 V. I should probably try 60 mph in 2nd gear... ;-)

PS: I hope you got my email in time.

Just hearing what other people did helped greatly. I will send you an e-mail on meter behavior as soon as I get some driving time in on this thing.

I hope to confirm what the spark plugs and my gut feeling tell me--the car runs extremely lean, especially at higher revs. Ever since I ported the heads and installed headers, I have suspected that the OEM injectors just cannot keep up when I engage in spirited driving. Now, I have the tools to confirm it.

Next weekend, I intend to test some 300cc injectors at low fuel pressure to see if the ECU will adapt to the big injectors or just balk. Should prove interesting no matter what the results.