Installing a system in a car that didnt have a sub before

[desitdt]

So im installing a system in my car that didnt have a sub before. Is this possible? or do i need to get an aftermarket HU. I know i need an Line Out Converter but there is no sub output, just the 4 speakers.

 

[Beastb15]

So im installing a system in my car that didnt have a sub before. Is this possible? or do i need to get an aftermarket HU. I know i need an Line Out Converter but there is no sub output, just the 4 speakers.

A new HU is best ( I have one for sale if interested), but a line out converter will work. Basically you hook the rear speaker wires up to the line out converter and it turns those signals into a RCA output. You would then run your RCAs from the LOC to your amp

 

[toypaseo]

You could tap the speaker leads, right after the OEM amp, like in my "Budget Bass" project...

http://i24.photobucket.com/albums/c4/toypaseo/explorer sub/106_0691.jpg