Summary: It was inexpensive and worth half of what I paid. It didn't work right out of the box. Cost more to mail back and forth than I paid, but there is a reason it is called cheap. Would have given this product no stars, but it won't let me.
Summary: amazons and pyles website description is wrong. there is no 3.5 mm input on this device. I bought this along with pyle 300 watt 5x7 speakers the distortion to the speakers kept popping the speakers and they only stopped popping when only one speaker was hooked up the ipod port is extreemly loud and cant be adjusted. way too loud. the gain control nob makes the speakers pop and crackle. does not charge.
Summary: I purchased the PLIPA2 as the core of my sound system for my BBQ pit trailer. In order to do the basic function of volume control, it required modification right out of the box. To be able to control your volume with this Amplifier, you have to cut off the 30 pin IPod connector and install a 3.5mm ear phone jack. Tiny little wires that require soldering then protection. NO VOLUME CONTROL - DO NOT BUY!
Summary: like others have said. it is a great idea. very small in size, hook up speaker wires, power, ignition and ground, you are ready to go. except there is no volume control. you can NOT control volume from your Iphone. So this product is of no use. Only reason I gave it a 3 stars vs. 1 star is because Pyle also make a 3.5mm version, which will likely to work with Iphone's volume control.
Summary: I bought this AMP based on the previous review that made me believe it would be powerful enough at only $23. As the previous review stated the gain control is NOT a volume control so it will not turn the volume all the way down. It is fine for me from its low to medium settings. The switch is useless but works fine in the middle. This is a GREAT way to hide some tunes in a Street Rod. The AMP does not charge the iPod as far as I can tell.
Summary: this does not work well out of the box. the gain control is not your regular volume control with full adjustment, and only works over a limited range. this means that your choice in volume is from really loud to way too #%$@ing loud, if you leave the ipod connector as is. as i needed a bit more control than that, i hacked off the ipod connector and spliced in a 3.5mm male plug so i could use my ipod's volume.