Wont turn on

Question edited for a lot more clarity.
Question moved to model category.

Troubleshooting help, but better to take the vehicle back and ask why the unit no longer works?

Unable to receive stations.
• No antenna, or open connection in the antenna cable.
- Make sure the antenna is properly connected;
replace the antenna or cable if necessary.
Unable to tune stations in the seek mode.
• You are in a weak signal area.
- Make sure the tuner is in DX mode.
• If the area you are in is a primary signal area, the antenna may
not be grounded and connected properly.
- Check your antenna connections; make sure the antenna is
properly grounded at its mounting location.
• The antenna may not be the proper length.
- Make sure the antenna is fully extended; if broken, replace
the antenna with a new one

In Case Of Difficulty - Alpine IVA-D300 Owner's Manual

https://www.manualslib.com > ... > Owner's manual
Alpine IVA-D300 Manual Online: In Case Of Difficulty. ... If the unit is still not functioning normally, please review the items in the following checklist.

Contents - Alpine USA

https://vault.alpine-usa.com > OM IVA-D300
PDF
Selecting the Channel directly . ... Make sure the IVA-D300 will not be installed in a location ... Do not use commercially available disc accessories.

hi jeff you need to push the reset button with the radio on. The reset button is the small one on top in the middle of the face plate.

http://www.fatmanual.com/z/354012000001287

Double Check Wires, Also Check Fuses In Car And Under Hood (if any)

go to store and buy a new one duh!

got a short somewhere in the ground and or power wire... check all your wire's again make sure nothing is touching metal or another wire...

I just finished installing my alpine iva-d300
but it says Invalid Disc
yet no disc is inside....I hear the motor inside but it won't upload or eject the cd

Try purchasing a "ground loop isolater", when your head unit and amp are grounded in 2 diffrent locations the diffrence in volatage to ground between the two will cause interference. Check the below link for more details, can be purchased of a shelf at you local radioshack http://www.radioshack.com/product/index.... loop&parentPage=search Hope this helps L8R

actually you need a filter on the power supply of the DVD unit since this is what is causing your problem. putting a spike suppressor on your audio in is not a bad idea, but it will kill some of your bass response.

Here's the link for the owners manual: http://vault.alpine-usa.com/products/documents/OM%20IVA-D300.PDF The wiring diagram is on page 70-71.