Whats the basic wiring for an ipod to the apline 9821 stereo?

Just follow the Aftermarket Wiring Diagram and you will be fine

you can try pacparts.com.

find the aux plug in the back of radio and run the the plug out so you can hook up your ipod or mp3 player they sell them in radio shack ask for the stereo plug in jacks

set time on alpine stereo model CDM 9821

Here is a link to the owner's manual for your stereo which will show you a wiring diagram:
http://a248.e.akamai.net/pix.crutchfield.com/Manuals/500/500CDM9823.PDF

had the same problem with my alpine, i was able to fix it once by, popping off the face plate and with fine grit sand paper (lightly) sand the connection point on the radio and the face plate, then put a little bit of dialectic grease on it. also doing a reset on the unit helped me from time to time...

Hello andrewbheber,

Your head unit is an Alpine "M-Bus" unit and has a proprietary connector for the AUX input. It requires a special cable from Alpine, the model KCM-123B..

Here's a link to the product. Click on the cable itself to see an image of what the connector on the back of your receiver looks like.

Hope this helps.

an easy way would b 4 u 2 gent an fm tramsmitter thats the cheap route if its not on output 4 an ipod connection im pretty sure u can hook up ur amp the only wires that need 2 com from th in-das is a remote and ur rca the remote wire should b blue n u can get a headphone converter with rca ends but i doubt ur ipod will play out of ur amp.... let me know if this helps

unplug the the wire at the back of unit everything will reset

Add Alpine's optional "Full Speed" connection cable and you'll be able to use the CDE-9872 to control your iPod. -Crutchfields website

This is compatible with first and second generation iPods touch.
fyi- if you have a mini-stereo aux in jack on the deck you can connect a ipod touch compatible mini stereo cable to the earphone jack of your ipod.