I was interested in this as well, i also have the JBL HU and wanted to know what radios would work in place of it?
Scion HU
- Thread starter CFR4RUNNER
- Start date
I was interested in this as well, i also have the JBL HU and wanted to know what radios would work in place of it?
does anyone know if you would be able to use this adapter?
Metra TYTO-01/TYTO01 Toyota JBL/Synthesis Wire Harness - eBay (item 140473389803 end time Jan-31-11 03:02:00 PST)
Metra TYTO-01/TYTO01 Toyota JBL/Synthesis Wire Harness - eBay (item 140473389803 end time Jan-31-11 03:02:00 PST)
TC4Rnr
Member
here is my take, correct me if I'm wrong since my knowledge is quite few years old.
there are 2 types of car stereo systems from the factory. the generic and fancy brand labeled.
generic ones, like in most cars, the head unit works as both signal source and power source aka amplifier. so, there's 1 pair of wires go to each speaker carries both the signal and power to drive the speaker.
simply, 1 amplifier powers all the speakers, higher the power output, louder the volume.
the fancy ones, such as Bose(GM, Nissan), JBL(Toyota), Nakamichi(Lexus). they are designed in different way to improve the sound quality. the head unit works ONLY as a signal source and a power switch but doesn't carry the power. each speaker is individually amplified by its own amplifier. 2 pairs of wire go to each speaker, this way, there's less interference between the signal and power since they are passing through different circuits. the amplifiers are switched on and off by the head unit.
there are as many amplifiers as the speakers(except the tweeters). the volume controlled by the output level or the amplifier, any way, just more complicated.
normally, you can't just put a new head unit to replace this kind of sound system, you have to do the new speakers, new wiring, new amp's.
there are 2 types of car stereo systems from the factory. the generic and fancy brand labeled.
generic ones, like in most cars, the head unit works as both signal source and power source aka amplifier. so, there's 1 pair of wires go to each speaker carries both the signal and power to drive the speaker.
simply, 1 amplifier powers all the speakers, higher the power output, louder the volume.
the fancy ones, such as Bose(GM, Nissan), JBL(Toyota), Nakamichi(Lexus). they are designed in different way to improve the sound quality. the head unit works ONLY as a signal source and a power switch but doesn't carry the power. each speaker is individually amplified by its own amplifier. 2 pairs of wire go to each speaker, this way, there's less interference between the signal and power since they are passing through different circuits. the amplifiers are switched on and off by the head unit.
there are as many amplifiers as the speakers(except the tweeters). the volume controlled by the output level or the amplifier, any way, just more complicated.
normally, you can't just put a new head unit to replace this kind of sound system, you have to do the new speakers, new wiring, new amp's.
Last edited:
Similar threads
