L and R channel/Red and White in system chain


I'm going crazy over this and I feel totally confused + angry. Anyone up to solving this puzzle?:

Turntable junction box: color coded white and red;
Phono preamp: engraved R(ight)(white terminal) and L(eft) (black terminal);
Rumble filter: no color coding; just L and R input and output terminals, both white;
Main integrated amp: no R or L but only Red and White inputs (CD player that's partner to the amp says Red is Right and White is Left channel)

I am so confused as to how to connect the cables it drives me nuts. I thought Red is always Right channel; but my phono preamp has Black marked as Left and White as Right.

The rumble filter has no color at all and only says R and L, but if my main amp Red/Right and White/Left that different from the phono preamp. The sound seems ok in either combo but it angers me that I have to play a guessing game with high end stereo equipment. Please advise.
actusreus
I really don't see why you're having such a problem with this.Left and right is still left and right regardless of what color the mfgr. chooses to use.
1) "L" and "R" marks should have priority over any color coding
2) should there be no marks, in any red & black or red & white combination I have ever encountered red was always "R" (easy to remember by the first letter Red = Right)
3) black & white combinations without marks: read the manual.
I know I used to have trouble with R/L for my turntable. I would always play a certain record on which like the male singers were always on the left and the females on the right.---Ok, so I love Ray Conniff. There must be several songs where you know such and such instrument is on say the right channel,no?
Actusreus, don't let it overwhelm you. Other than the rumble filter, which I don't know, it is simply to see how each of your components should be connected.

Good luck,

Wendell