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<blockquote data-quote="Spooby" data-source="post: 1601136" data-attributes="member: 548396">Hey Nick, this is Nam.&nbsp; I was there when you bought the IA20.1.&nbsp; I finally realized who you were LOL.On your cousin&#039;s headunit, it has 2 RCA preouts, but none that are dedicated for subwoofer duties.&nbsp; If you look to the left of that page you&#039;ll notice in the &quot;General&quot; section that it has 2 preamp outputs, but just below that it does not have a sub preamp output.&nbsp; You would want something with a sub preamp output for your IA20.1.&nbsp; Most radios have 3 RCA outputs, 2 for the 4 channel amp (front and rear), and the 3rd would be for subwoofer duties.&nbsp; I think you can find an Alpine CDA-9856 for a fair price if you needed something.Double DIN is like having 2 radios stacked on top of each other.&nbsp; This is a picture of my Pioneer FH-P4200MP that I have laying around.&nbsp; Sucker was only used for a week then the car got totaled //content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif.<img src="http://www.pioneerelectronics.com/pio/pe/images/portal/cit_3442/152869141FH-P4200MP_big.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />The wierd thing about this radio is that it has only 2 RCA outputs, but one is for the front, the other is for subwoofer duties. //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif</blockquote>

[QUOTE="Spooby, post: 1601136, member: 548396"] Hey Nick, this is Nam. I was there when you bought the IA20.1. I finally realized who you were LOL. On your cousin's headunit, it has 2 RCA preouts, but none that are dedicated for subwoofer duties. If you look to the left of that page you'll notice in the "General" section that it has 2 preamp outputs, but just below that it does not have a sub preamp output. You would want something with a sub preamp output for your IA20.1. Most radios have 3 RCA outputs, 2 for the 4 channel amp (front and rear), and the 3rd would be for subwoofer duties. I think you can find an Alpine CDA-9856 for a fair price if you needed something. Double DIN is like having 2 radios stacked on top of each other. This is a picture of my Pioneer FH-P4200MP that I have laying around. Sucker was only used for a week then the car got totaled [IMG]//content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif[/IMG]. [IMG]http://www.pioneerelectronics.com/pio/pe/images/portal/cit_3442/152869141FH-P4200MP_big.jpg[/IMG] The wierd thing about this radio is that it has only 2 RCA outputs, but one is for the front, the other is for subwoofer duties. [IMG]//content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif[/IMG] [/QUOTE]

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