Yes you can.
Disconnect the wires from the sub in the back deck. Forget that thing. Tape them off and hide em. The wires from the 6x9 speakers, you can splice into and get a high-level input (speaker wire) to low-level (RCA) adapter. They sell them at Walmart for $20. Scosche. They're green and cheesy but have separate gains which is cool. These will give you sound signal. I also connected the 6x9's. The power lead is tough. Peel the carpet back and drill up near the top of the gas pedal and check the firewall for a safe small space on the other side. I managed to get 4 gauge through to the trunk. The remote was from a small wire ran direct from the battery with the hot lead. I mounted a small lighted switch under the dash. That switch also had to be grounded locally. Even tho it was lighted to remind me I usually forgot to turn it off, so the amp stayed on a lot (oops). But it was pretty clean. Make sure you have fat ground cable with a good bare metal connection. Mine was behind a carpet panel in the trunk, on a trunk support, so it was hidden when the panel was in place. A small rear facing box with Lanzar 12's and a big Lanzar amp. To this day you see (or hear) no CTS's with subs. I found that the factory radio did a great job of controlling the sound.
If you are looking under your hood. Coolant goes in reservoir at top right near stearing wheel
There are many different ways that you could wire two dual voice coil subwoofers. Depending on how you connect the voice coils, you could have 1ohm (all coils in parallel), 4ohms (parallel-series combination). Technically you could wire them for 16ohms (all in series), but this isn't done in practice because an amplifier won't provide much power to a 16ohm load. You should wire the subwoofers to make an impedance (which is the 'ohms') which will match your amplifier. Not all amplifiers can handle 1ohm, so you may need to wire the subwoofers for 4ohms. Be sure to do some research on this before wiring anything up or you could damage your amplifier. For some helpful wiring diagrams, check out the Fosgate Wiring Wizard: http://www.rockfordfosgate.com/rftech/woofer_wizard.asp?submitted=true&woofer_qty=2&woofer_imp=4
The only way to Add transmission fluid is from up underneath the car where the transmission is.unless you can jack the car up yourself.Its designed for the person to take to dealership.but if you can jack it up you can add fluid where the transmmission housing case is
You can get some subwoofers for under five pounds that won't add much weight at all.
Typically, subwoofers add absolutely no value to a car, but they can be sold separately for 20-40% of the original retail price.
crutchfield
For the basic model of the 2011 Cadillac EXT Escalade, from the Cadillac website, the cost is 69,740 dollars. If you add more to it, then it will cost about 75,000 dollars.
The easiest way would be to add another potentiometer (of the same rating) in series with the master volume control.
Sure, but theres not a lot of room back there to put them, several places make enclosures for the wrangler, I'd start with Crutchfield or Quadratek.
You don't. It is a sealed unit.
No, you can only gain with a cold air intake if you are moving up from stock, getting denser air into the engine. Now unless you have the new Cadillac CTS-v, you'll only be going up in horse power. A cold air intake can sometimes add up to 20 horsepower.
A cadillac escalade is a high-end SUV made by the Cadillac company. They start at about $63,000 (for a 2011 model) and move up in price based on what features you add on, such as leather seating, custom wheels, etc.