Only if installed as a addon. It did not come as the standard package. But I have a tow package on mine. It was installed later, not standard. So it is not uncommon that the current 1990 would have the amp installed. I have 92 4runner it is pretty basic truck but it has a built in amp in the rear quarter panel I want to say on rightside can't remember for sure.
There are 4 amps, one on each speaker, the speaker is in an enclosure with the amp built into it.
Yes, they can play fine without an amp because they have a built in speaker.
no it comes with a speaker built in but if you want you could plug in the amp to make it louder.
Each speaker has it's own amp. Generally, the capacitors fail. Bose will repair for about $100 each.
On most they have a built in amp so you need a wiring harness
Yes, It is integrated into the factory radio. It has its own built in amp...If you turn it up @ nite-time you will see it blink when power is required...
Min 450cca Battery but try to get as most cold cranking amp in the battery as possible. 675 or 775 series
It is passive, no amp built in or included.
You don't say whether speaker built in or free-standing. Problem is either speaker, amp or wiring between. Assuming stereo, put speaker on other channel. If fault changes over = speaker or wiring at fault. If it doesn't = amp at fault. Assuming fault changed over, check plugs and connections and meter wires for continuity. Speaker should have nominal 4, 8 or 16 ohms across the terminals
You DO NOT need an amplifier for a dj setup. Some speakers now come with a built in amp, known as a "POWERED SPEAKER".
infinity speakers have the amp on the speaker
U just take out and slide in the new one!