I read the FAQ on how to make the power antenna work. But what is missing is a part number or model # for the relay? Can someone help me out? What should I look for when buying this part?

 

Any standard SPDT automotive relay is fine. Available at any auto parts store.

 

Go to Radio Shack. They sell that relay for $4.99. Ask for the 12 volt/30 amp relay.

 

Is this it? Link to Radio Shack

Descrition says it is 12vDC/30a SPST auto relay. But Aaron Cake said to get a SPDT.

What is the difference?

 

That looks like the one. SPST = Single Pole, Single Throw. SPDT = Single Pole, Double Throw. The difference is that the single throw is in either one of two positions ("throws,") like a light switch in your house. The double throw can be in one of three positions, like OFF, A, or B. The SPST is all you need to make the antenna work, as the wire from the antenna is either grounded (to make it go up) or not grounded to make it go down.

 

That worked perfect. Can some one add this part numbert to the FAQ?

Brand: RadioShack
Catalog #: 275-226
Model: 275-226

 

Don't take this the wrong way, but there's no need to do so. If the part numbers are in the FAQ then everyone goes out of their way to get the part from Rat Shack. It's far easier to just walk into any automotive store and get the relay. There's nothing at all special about the relay since it's just a standard 12V automotive relay.