wireless project help please....

Hi peoples, i hope i'm not ruffling any feathers by asking this. if so my apologies in advance.

i've got a little project in mind where i want to control lights on a car wirelessly. i've played with rc car parts but the cost and complexity is a bit beyond me and my 9 years ago 2 year schooling in electronics. in other words i have a seriously bad case of C.R.S.

Anyways here's the details....

i'm envisioning a 2 part device. 1 handheld, the other mounted on the vehicle. the handheld device would consist of 4 momentary pushbuttons with the outputs transmitted to the reciever mounted on the vehicle, which in turn would be the control side of a relay to simple light circuits on my car.

would a 4 channel transciever work?

ideally, the entire device should work on 12 volts dc and be as simple as possible. range should be no more than 100 ft. is this doable? Are there modules available for the rf side of this or do i need build the whole thing from scratch? if so, maybe some suggestions on manufacturers?

transmitter here:
**broken link removed**

you want the RLP434A receiver here:
**broken link removed**

you will also need a decoder for the receiver to match what is in the transmitter.
you need a Holtek HT12D.

or you can get a kit here:
Complete TWS-434 RWS-434 4-Bit RF remote control package

thanx very much.

keyfobs------D'OH!

lemme digest this a bit and i'm sure i'll have a question again later. thanks again for helping out a guy with crap memory.