I have not studied the texture and paint color on the Outlander yet as I only put a deposit on mine and have not purchased it yet. In general terms, if you need to change the surface texture and color of plastic trim parts, the best product on the market is a line of paints made by SEM. They have a broad range of color options, the paint adheres well to plastic, and they have a texture spray that goes on before the color coat if smooth plastic is not what you want. The 'grain' of the texture is variable depending on how far away you hold the spray can. I don't know about the availability of SEM spray paints in Ireland but if there is a thriving aftermarket mobile electronics industry there, chances are the professionals use SEM products.

 

The stock head unit does not have RCA output connectors but that does not mean you can't add an aftermarket amplifier relatively easily. Goldenboy has some good suggestions but I don't think you should buy a LOC unless absolutely necessary. They usually are not needed when keeping the OEM head unit. The reason is because most OEM stereos send a high level signal in the 5-10 volt range back to their rear mounted or underseat amplifiers. They do this because it eliminates a lot of problems with noise. I don't know if this applies to the Outlander system because I just bought mine. I have not had time to measure it. I strongly suspect it does apply but recommend you do a little more research to find out if I am correct. Measuring my car won't help you unless you have the Rockford Fosgate system.

If you have high level outputs and if you don't mind cutting the OEM wires and soldering on RCA connectors, you could just use the factory wiring and modify the connectors at the amplifier location to include RCA plugs for an aftermarket amp. You will want to make sure you buy an amp that can handle high level signals at its input. Remove the factory amp and mount the aftermarket amp in the same location. This would be the lowest cost, simplest approach to upgrading but it only works if you are comfortable doing the work yourself. I would never trust cutting and soldering the OEM harness to the average mobile installer at a Best Buy store or similar chain store.

If you are not comfortable cutting and modifying the OEM wiring, then a line output converter (LOC) may be the best way for you to do this.