Jfire,
I just did the Rostra Cruise control install (I waited for the 100K warranty to run out). It is worth it. As far as MPG goes, yes, you can get better MPG with your foot IF you are constantly thinking about it. Sometimes you just want to drive without the hassle of constantly being AWARE.
The cruise doesn't change anything about how the car works. It only functions when you turn it on. When I feel lazy, I can still set it to 68 MPH and get 70 or 75 MPG.
For you and anyone else installing the Rostra, I'll offer some suggestions.
I also used Mr. Yeagers instructions. They are good, but I think this will help.
1. When passing the wire harness through the heater cable hole, cut the latches off sides of the white connectors. They connect tight enough and a little electrical tape will secure them well. They are a real bear to get through hole un-trimmed.
2. When going for the VSS signal wire, it is the blue and white wire, but it is not position 5, it is position 6.
3. There are three small spade connectors at the top of the under-dash fuse box that have power (it can't be seen, just felt). Use the left one as you face the box. And the beautiful bolt at the center bottom of the fuse box, that looks like the perfect place to attach your ground wire. That bolt is not grounded and if you use it, you will think your transmitter/receiver has failed and you will buy a new one for no reason at all. Don't ask how I know this. Incidentally, I have a brand-new never before used RF transmitter/receiver for sale. I will include a piece of aluminum for the bracket, and the extra dacron bolt
to mount it. $60 including shipping.
4. I found no really great place to mount the receiver, so I used zip ties through the holes and ran them around the box behind the change bin to the left of the steering wheel. It is the Key-less entry receiver, and having the cruise receiver against it doesn't have any effect.
That is all I can think of to make your life easier. I have used my cruise control for 2500 miles on my 3 times per week, 100 mile RT commute and it is a dream.
Tom
'01 #1042 ECOBOT