Ordered a JVC KDX50BT Digital Media Receiver from Crutchfield.I put on my order that my system was not an Infinity system.Today looking at the old unit cloer,i am thinking i do have an Infinity system.I read some posts around here about how pillar tweets means you do have Infinity.I pulled old stereo and it does not say anywhere on radio if it is or isn't.I pulled the oval door speaker,again i looked everywhere for the word Infinity.Nothing,anywhere.I am thinking it is because the door speaker has a black part bolted to the magnet,i am assuming this is the amp.Between that and the a-pillar tweeters,i am almost sure it is.Can anyone confirm in case i need to call them and tell them i ordered the wrong thing.
Here are a couple pics of my old system...

 

Mine says Infinity on the door panel right where the tweeters are, I don't have the factory receiver anymore but it looked similar to yours.

 

That black amp on the speaker indicates the Infinity system as well as the A-pillar speaker.

 

Well i posted prematurely it seems.I ran an online Vin check and the build sheet says it has Infinity speakers,code RCEP
I called Crutchfield and let them know but they said it didn't make a difference,i was getting the install kit and harness with the radio.I guess the harness must be wired to bypass the speaker amps.

Thanks all

 

Yeah it's the adapter for the back of the receiver, so there's no wire splicing, plug and play, plug adapter to old receiver pigtail then to new receiver. The speaker wires should goto the amp which runs the speaker, as in current existing configuration.

 

Which is fine so long as the speakers/amps are still good... my speaker/amps gave out before the head unit (looks exactly like yours).
There's a thread on bypassing the speaker amps... a search should find it.