Do you think getting an auxiliary port installed in my car would be expensive ?

My 2006 Toyota Avalon doesn't have an auxiliary port and I was wondering if it were possible to get one installed in it, rather than having to use an FM transmitter or other last-resort options. Does anyone know if that would be too expensive, and if anyone knows how expensive do you expect such an operation to be? I know these are all rather shady details but if anyone has a clue about this stuff or knows a thing or two about cars I'd greatly appreciate the advice.

cost like $79 bucks... Fightingfan

Reads like 79 dollars bucks :P

Cheap headunit + 2$ wire. Some of them even has ipod input so you can control off the unit.

This is what I bought because I want to keep my factory HU

http://gromaudio.com/store/all-toy.html

It will work with just this, but if you want a factory look you'll have to do a little bit more. Otherwise, you just run the aux cable through a side panel, cupholder, e-brake slot, etc. This also allows you to still use steering wheel controls if you have them.