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Re: speaker hook ups
It seems you are implying that your receiver itself has got an amp though small. You use another amp to boost your power, is that right?
It will definitely damage both your receiver and amp, just waiting which one to go first if you do what you are saying. In the first place how do you connect your receiver to the second amp? it has a line out i suppose? and for now your speakers are only connected to the booster amp? So it is only a matter of selecting where your speakers get connected when you wanted. DO NOT, in any case splice your speaker wire to attach your receiver speaker to the output of your booster where your speakers are connected.
What you can do is just make a switch selecting which source you will use for your speakers. You just need a simple toggle switch 2poles/double throw. 1pole for each channel (R/L) connect your center pole to speaker, the other selectable 2poles to the output of booster, the other pole to the receiver. (each channel) that is your safest. If you a a techie you can actually make a power driven relay switch to select the speakers where to get connected but maybe you can not do that on your own. it has to be someone with knowhow, simple design though. the same principle, your meccanilca 2pole/double throw switch will be replaced by the same specs but relay. elecically driven whrn you turn on/off your booster.
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yes you can. these are called "bi wired" speakers which means there's a hook up for the woofer and the tweeter individually. If your amp have just 2 speaker hookups it's no problem to hook the woofer/tweeter wires of each speaker together. If your amp had 4 speaker hookups, you could put the tweeters in 1 and the woofers in the other but it will still work fine with 2 speaker hookups.
Possible scenerio's with the little info you gave.
1.You have a bad speaker thats blown or the wires are touching the chassis of your car.
2. You have a factory amp and you need to connect the blue wire to the amp turn on wire. And if it still doesnt work then you have to rewire it complete or maybe have to get a special car amplifier compatible harness so your aftermarket works with your amplified system in your car.
3. In certain Ford cars they crisscrossed the back speaker wires. To test this unplug your harness from the radio. VERY IMPORTANT( splice these colors of wires in the middle enough so you can use a 9volt small rectangular battery to make the speakers you want to test pop(harmless)) 1. green = back left + speaker 2. green/black = back left - speaker 3. purple = back right + speaker 4. purple/black = back right - speaker
test green speaker wires first touch battery to the + and - and the speaker should pop if not you have already discovered the problem. Know this time pop the green + and the purple/black - on the 9volt battery if the speakers pop you have found the solution.
Just criss cross the the negatives of the back speakers. From the radio harness end attach green to green, purple to purple, green/black to purple/black and last purple/black to green/black. And all your speakers should work again.
Dont ask me why late Ford Models crisscrossed their speaker wires. They just did.
try to get a "speakerwire to rca cable" connector. hook it into your back speaker wire and run your amp off of that. then hook the sub up to the amp as usual. without an amp, just splice into your closest speaker wire
I do not want to insult you in any way, but I must ask just in case it was overlooked! First check to be sure that the speaker settings on the stereo were not set all the way to the front. If that is not the problem, you can hook another speaker you know works to the wireing to the rear speakers to check to see if it is the speaker or the wireing. If you hear sound from the speaker you know works, then your speakers in the car are bad. If you do not hear sound, then it will be from the wireing. Next is the more difficult part. You will have to pull the stereo out and can splice into the wires. Hook the good speakers up to the splice and check for sound. make sure you know for sure the wires you splice into are for the rear speakers. If you still hear no sound, then it is more then likely a problem in the stereo itself. If you do hear sound then there is a problem in the wireing somewhere and may be easier to just run new wires to the rear speakers.
red= accessories power on
yellow= power always on memmory
blue white= amp switch this goes to amp
blue= power antenna
the other wires are speaker wires top is for the fronts
the bottom set is for the back speakers this is simple
suggestion if you dont know the wire hook up i suggest taken the wires and sterio to certified car sterio installer pay 5 bucks and have them splice the wires together for you so you dont screw up your vehicle wireing or your sterio this is crucial
If your amplifier has what they call High level inputs (basically inputs on the amp that you run the speaker wires from your radio into), you can splice wires from where the connectors are on your rear speaker(s), still leaving the speaker hooked up, and use those as an input into the amp. If your amplifier does not have high level inputs, a convertor is available to turn an audio signal from your radio output speaker wires ( spliced in just as above, leaving the speaker hooked up), into an rca output jack. Or the best thing to do would be to buy another say 2-4 channel amp w/high level inputs and rca inputs and outputs, and run your rear speaker wires into the amp. Then you'll be able to run the rca cables out of that amp and into the sub amp, and you'll have the new amp to power your rear speakers or rears and fronts. That would be ideal. But, A convertor is your best bet. Got em at best buy, circuit city, etc. Hope this was helpful.