1998 c70 premium sound speakers

pdorestan01 · Post by **pdorestan01** » 03 Aug 2013, 10:00

I have a 1998 c70 withthe premium sound I'm going to put a new head unitI was wondering how many ohmsare the speakers in the car because I would also like to put a new amp since you cannot use the stock amp with the aftermarket HU or can I still use the stock amp with an aftermarket head unit

Post by **mikealder** » 03 Aug 2013, 10:25

Assuming your new headunit has RCA outputs for the amp connection purchase an adapter to go between the RCA outlets and the DIN plug as they are readily available, plug the RCA outputs in to the adapter then connect the DIN plug that feeds the amp in to the other end of the adapter. The adapter should also have a single blue wire coming from it, this should be connected to the headunits amp remote on/ off wire as it will switch the OEM amp on and off when connected. One such item on the auction site see Here or simply visit Radio Shack and purchase the bits to make your own assuming you know how to solder - Mike

pdorestan01 · Post by **pdorestan01** » 03 Aug 2013, 10:57

Thankk you so much I was about to spend 3 grand on some speakers and amp

pdorestan01 · Post by **pdorestan01** » 03 Aug 2013, 11:12

I just bought its coming from Uk 53 dollars is alot better than 3 grand I liked tje sound im my car .? Whay about the center channel will that work?

Post by **mikealder** » 03 Aug 2013, 11:29

Your car has the Dynaudio speaker system which cost a lot of money when new and is matched to the factory fit amp so I wouldn't look at wasting money swapping that lot out as it is very good to start with, this also negates a heck of a lot of wiring in the car as you can use everything Volvo fitted when they built it.

The centre speaker is a Volvo specific bit of kit, I am not too sure any after market headunits will be capable of driving it so you will loose that capability with a non Volvo headunit - Mike

pdorestan01 · Post by **pdorestan01** » 03 Aug 2013, 12:10

The new head unit has 5.1 capabilities its a Sony xav 601 BThow powerful is that amp and what kind of plant is it and how many channels I'm sorry I don't mean to bother you so much

Post by **mikealder** » 03 Aug 2013, 12:45

With the stock Volvo headunit the front and rear main speakers are fed from the amp, the centre speaker in the dash is fed from the headunit directly so unless the headunit you are fitting has an amplified output for a centre dialogue speaker (which I don't think it has) it won't be able to drive the dash mounted speaker.

The stock C70 amp in the Volvo is 4 x 100W - Mike

pdorestan01 · Post by **pdorestan01** » 03 Aug 2013, 21:00

Where do I hook up the blue wire from the amp adapter? And where would I hook up tje power antenna wire?

Post by **mikealder** » 04 Aug 2013, 02:35

The blue wire from the amp adapter cable needs to go to the amp remote power on output from the headunit, I would also take the Blue/ White wire from the headunit connector A pin 3 and connect this to the amp remote power on output from the headunit as this is the wire that controls the aerial - Mike

pdorestan01 · Post by **pdorestan01** » 04 Aug 2013, 07:55

Thanks Mike appreciate it .